diff -up poppler-0.18.1/configure.ac.pkgconfig_GLIB_REQUIRED poppler-0.18.1/configure.ac
--- poppler-0.18.1/configure.ac.pkgconfig_GLIB_REQUIRED	2011-10-26 07:34:22.000000000 -0500
+++ poppler-0.18.1/configure.ac	2011-10-28 16:46:07.357243072 -0500
@@ -409,6 +409,7 @@ if test x$enable_cairo_output = xyes; th
   POPPLER_GLIB_DISABLE_SINGLE_INCLUDES=""
 
   GLIB_REQUIRED=2.18
+  AC_SUBST(GLIB_REQUIRED)
   AC_ARG_ENABLE(poppler-glib,
 	        AC_HELP_STRING([--disable-poppler-glib],
 		               [Don't compile poppler glib wrapper.]),
diff -up poppler-0.18.1/poppler-glib.pc.cmake.pkgconfig_GLIB_REQUIRED poppler-0.18.1/poppler-glib.pc.cmake
--- poppler-0.18.1/poppler-glib.pc.cmake.pkgconfig_GLIB_REQUIRED	2011-10-17 06:42:29.000000000 -0500
+++ poppler-0.18.1/poppler-glib.pc.cmake	2011-10-28 16:43:22.997297849 -0500
@@ -6,7 +6,7 @@ includedir=${prefix}/include
 Name: poppler-glib
 Description: GLib wrapper for poppler
 Version: @POPPLER_VERSION@
-Requires: glib-2.0 >= $GLIB_REQUIRED gobject-2.0 >= $GLIB_REQUIRED cairo >= $CAIRO_VERSION
+Requires: glib-2.0 >= @GLIB_REQUIRED@ gobject-2.0 >= @GLIB_REQUIRED@ cairo >= @CAIRO_VERSION@
 @PC_REQUIRES_PRIVATE@
 
 Libs: -L${libdir} -lpoppler-glib
diff -up poppler-0.18.1/poppler-glib.pc.in.pkgconfig_GLIB_REQUIRED poppler-0.18.1/poppler-glib.pc.in
--- poppler-0.18.1/poppler-glib.pc.in.pkgconfig_GLIB_REQUIRED	2011-10-17 06:42:29.000000000 -0500
+++ poppler-0.18.1/poppler-glib.pc.in	2011-10-28 16:43:22.998297837 -0500
@@ -6,7 +6,7 @@ includedir=@includedir@
 Name: poppler-glib
 Description: GLib wrapper for poppler
 Version: @VERSION@
-Requires: glib-2.0 >= $GLIB_REQUIRED gobject-2.0 >= $GLIB_REQUIRED cairo >= $CAIRO_VERSION
+Requires: glib-2.0 >= @GLIB_REQUIRED@ gobject-2.0 >= @GLIB_REQUIRED@ cairo >= @CAIRO_VERSION@
 @PC_REQUIRES_PRIVATE@
 
 Libs: -L${libdir} -lpoppler-glib
diff -up poppler-0.18.1/poppler-glib-uninstalled.pc.in.pkgconfig_GLIB_REQUIRED poppler-0.18.1/poppler-glib-uninstalled.pc.in
--- poppler-0.18.1/poppler-glib-uninstalled.pc.in.pkgconfig_GLIB_REQUIRED	2011-10-17 06:42:29.000000000 -0500
+++ poppler-0.18.1/poppler-glib-uninstalled.pc.in	2011-10-28 16:43:22.998297837 -0500
@@ -1,7 +1,7 @@
 Name: poppler-glib
 Description: GLib wrapper for poppler - uninstalled
 Version: @VERSION@
-Requires: glib-2.0 >= $GLIB_REQUIRED gobject-2.0 >= $GLIB_REQUIRED cairo >= $CAIRO_VERSION
+Requires: glib-2.0 >= @GLIB_REQUIRED@ gobject-2.0 >= @GLIB_REQUIRED@ cairo >= @CAIRO_VERSION@
 
 Libs: ${pc_top_builddir}/${pcfiledir}/glib/libpoppler-glib.la
 Cflags: -I${pc_top_builddir}/${pcfiledir}/glib